Electronically controlled aperture, set using turn/push wheel on camera, including half values

Aperture setting range

1.4 -22

Lowest value

22

Bayonet/sensor format

Leica L bayonet, full-frame 35 mm format

Filter mount

E82

Dimensions and weight
Length to bayonet mount

124 mm

Largest diameter

88 mm

Weight

1.065 g

Page 1 of 3 I As at July 2016 I Specifications are subject to change without notice
Leica Camera AG I Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone +49(0)6441-2080-0 I Fax +49(0)6441-2080-333 I www.leica-camera.com

LEICA SUMMILUX-SL 50 mm f/1.4 ASPH.

ENGINEERING DRAWING

LENS SHAPE

Focus group

Illustrations 1:2

Aspherical lenses

The Leica Summilux-SL 50 mm f/1.4 ASPH. is the first prime lens in the SL-System portfolio and the new reference
lens in its class. This extremely fast, high-performance standard lens is ideal for capturing subjects in natural lighting and offers the advantages of shallow depth of focus as a creative tool. Thanks to the outstanding precision of
its autofocus, it allows you to concentrate fully on your subject and the composition of a perfect picture. The imaging performance of the lens fulfills even the most stringent standards. Particularly at maximum aperture, its high
resolving power and the pleasingly soft bokeh in out of focus areas isolate the subject clearly from its surroundings. Thanks to the consistent contrast rendition throughout the focusing range, this applies equally for all distance
settings.
CONSTRUCTION DETAILS
A special feature of its construction is the motorized focusing system. In contrast to manually focused prime lenses, where the length generally varies when focusing, the Leica Summilux-SL 50 mm f/1.4 ASPH. has internal focusing*. To ensure high imaging performance throughout the entire focusing range, the focusing group is elaborately constructed with an aspherical element, yet remains light enough to guarantee fast automatic focusing.Its
optical design contains a total of 11 elements. Of these, two are aspherical elements and a further four are made
from glasses with anomalous partial dispersion for the correction of chromatic aberrations. This complex optical
construction reduces all monochromatic and chromatic aberrations to a hardly perceptible minimum. Advanced
multilayer coating on all lens surfaces, the optimum design of the lens tubes, and the rectangular lens hood provided with the lens significantly reduce reflections and stray light.

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The MTF is shown in each case for the maximum aperture and the aperture values 5.6 and 8.0 for long focusing distances (infinity).
The contrast is plotted for 5, 10, 20, 40 lines/mm for the height of the format for tangential (dashed line) and sagittal structures
(continuous line) for white light. The plots for 5 and 10 lines/mm provide an impression of the contrast performance for coarser object
structures and the 20 and 40 lines/mm plots document the resolving power for fine and finest object structures.

Page 3 of 3 I As at July 2016 I Specifications are subject to change without notice
Leica Camera AG I Am Leitz-Park 5 I 35578 WETZLAR I GERMANY I Telephone +49(0)6441-2080-0 I Fax +49(0)6441-2080-333 I www.leica-camera.com